Effects of manufacturing errors on tribological characteristics of 3-D textured micro- thrust bearings

被引：17

作者：

Charitopoulos, A. G. ^{[1
]}

Efstathiou, E. E. ^{[1
]}

Papadopoulos, C. I. ^{[1
]}

Nikolakopoulos, P. G. ^{[2
]}

Kaiktsis, L. ^{[1
]}

机构：

[1] Natl Tech Univ Athens, Sch Naval Architecture & Marine Engn, Zografos GR-15710, Greece

[2] Univ Patras, Univ Patras, Dept Mech & Aeronaut Engn, Machine Design Lab, GR-26500 Patras, Greece

来源：

CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY | 2013年 / 6卷 / 02期

关键词：

Micro- thrust bearings; CFD; Manufacturing errors; Performance sensitivity;

D O I：

10.1016/j.cirpj.2012.12.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The performance sensitivity of textured micro- thrust bearings to manufacturing errors is investigated by means of Navier-Stokes Computational Fluid Dynamics simulations, for incompressible isothermal flow. Bearings of optimized geometry are modelled as three-dimensional micro-channels, consisting of a smooth moving wall, and a stationary wall exhibiting periodic rectangular dimples. Discrepancies in the size and shape of the texture geometry, as well as macroscopic errors in the stationary surface (concavity/convexity and waviness) are considered and parametrically modelled. The effects of manufacturing errors on the bearing load carrying capacity and friction coefficient are analyzed, for representative width-to-length bearing ratios. In a number of cases, manufacturing errors result in improved performance of textured micro-thrust bearings. (C) 2012 CIRP.

引用

页码：128 / 142

页数：15

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